Join Date: Aug 2006
Location: Schenectady, NY
^ With that tag on my Dana 35, I had to clean it considerably to see all the numbers. When you're looking at the back of the axle, it's the vertical tag in the 9 o'clock position with the sideways writing. Your gear ratio will be on the top on the 2nd column (the one that would be on the bottom-left if you were looking at it right-side up) and will either be a 3 or a 4 followed by 2 numbers.
I run 31x10.5 Revos on stock 15x7 rims and stock 3.07 gearing with no problems. It's nice to know what gearing and such your TJ has, but you don't *need* to regear for those tires. A couple washers under your steering stops will correct any control arm rubbing you may have when you crank your wheel to the far right or left.